CN213297905U - Combined packer used under high-temperature and high-pressure working condition - Google Patents
Combined packer used under high-temperature and high-pressure working condition Download PDFInfo
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- CN213297905U CN213297905U CN202022004151.8U CN202022004151U CN213297905U CN 213297905 U CN213297905 U CN 213297905U CN 202022004151 U CN202022004151 U CN 202022004151U CN 213297905 U CN213297905 U CN 213297905U
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Abstract
The utility model discloses a combined packer used under high temperature and high pressure working condition, which comprises a lower packer, wherein the lower packer comprises an upper joint, an upper rubber cylinder seat, a rubber cylinder, a lower rubber cylinder seat, a lower joint and a central tube, and also comprises an upper packer, the upper packer comprises a connecting circular tube, the lower end of the connecting circular tube is detachably connected with the upper joint, a baffle disc is sleeved on the outer wall of the connecting circular tube, a rubber cylinder sleeve and a conical sleeve are further sleeved on the outer wall of the connecting circular tube, the rubber cylinder sleeve is positioned at the lower side of the conical sleeve, the rubber cylinder sleeve is in a circular tube shape, and the inner diameter of the rubber cylinder sleeve is larger than the outer diameter of the connecting circular tube; the conical sleeve comprises a conical cylindrical part and a cylindrical part, the conical cylindrical part is positioned at the lower side of the cylindrical part, the outer diameter of the lower end of the conical cylindrical part is smaller than the inner diameter of the rubber sleeve, and the outer diameter of the upper end of the conical cylindrical part is larger than the inner diameter of the rubber sleeve; the utility model discloses possess two kinds of setting structures, have the lower advantage of leakage probability, be difficult for causing sealed not tight problem to take place.
Description
Technical Field
The utility model relates to a packer field specifically is a combination formula packer that is used for under high temperature high pressure operating mode.
Background
A packer refers to a downhole tool having an elastomeric sealing element whereby the annulus between the string of tubing and the wellbore and between the strings of tubing of various sizes is sealed off and the producing zone isolated to control production and protect the casing. Packers typically seal off the oil and casing annulus by outward expansion of a packer. When setting, the rubber cylinder of the packer expands under the action of oil pressure, thereby sealing the annular space of the oil sleeve; when the rubber cylinder is unsealed, the oil pressure is removed, and the rubber cylinder retracts to the original shape by the elasticity of the rubber cylinder, so that the rubber cylinder can be unsealed. Under the high temperature high pressure operating mode, service environment is abominable, seals through a setting mode only, and the probability of leaking is great, causes easily that to seal not tight problem to appear.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a combination formula packer for under high temperature high pressure operating mode aims at improving current packer and only seals through a setting mode, and the leakage probability is great, causes sealed not tight problem easily.
The utility model discloses a realize like this: a combined packer used under a high-temperature and high-pressure working condition comprises a lower packer, wherein the lower packer comprises an upper joint, an upper rubber sleeve seat, a rubber sleeve, a lower rubber sleeve seat, a lower joint and a central pipe, and further comprises an upper packer, the upper packer comprises a connecting circular pipe, the lower end of the connecting circular pipe is detachably connected with the upper joint, a blocking disc is sleeved on the outer wall of the connecting circular pipe and is fixedly connected with the connecting circular pipe, the blocking disc and the connecting circular pipe are arranged in a mode of sharing the central axis, a rubber sleeve and a conical sleeve are further sleeved on the outer wall of the connecting circular pipe, the rubber sleeve is positioned on the lower side of the conical sleeve, the rubber sleeve is in a circular pipe shape, and the inner diameter of the rubber sleeve is larger than the outer diameter of the; the tapered sleeve comprises a tapered cylindrical part and a cylindrical part, the tapered cylindrical part and the cylindrical part are of an integrally formed structure, the tapered cylindrical part is located on the lower side of the cylindrical part, the inner diameters of the tapered cylindrical part and the cylindrical part are the same as the outer diameter of a connecting circular pipe, the outer diameter of the lower end of the tapered cylindrical part is smaller than the inner diameter of a rubber sleeve, the outer diameter of the upper end of the tapered cylindrical part is larger than the inner diameter of the rubber sleeve, at least three grooves are formed in the upper end face of the cylindrical part, the grooves are uniformly formed in the circumferential direction of the cylindrical part, pull rings are arranged in the grooves.
Furthermore, the steel wire rope is a plastic-coated steel wire rope and comprises a steel wire rope core and a plastic outer sheath, and the steel wire rope core is made of stainless steel.
Furthermore, a threaded hole is formed in the outer wall of the connecting circular tube, a limit screw is installed on the threaded hole and located above the conical sleeve, and when the upper end of the conical sleeve is in contact with the limit screw, the lower end of the conical cylindrical portion of the conical sleeve is located in the rubber sleeve.
Furthermore, the upper end of the upper joint and the lower end of the connecting circular pipe are both provided with flange plates, and the upper joint and the connecting circular pipe are connected through the flange plates and the bolts and the nuts.
Furthermore, the upper joint is of an internal thread threaded pipe structure, the lower end of the connecting circular pipe is of an external thread threaded pipe structure, and the lower end of the connecting circular pipe is screwed into the upper joint.
Furthermore, the upper joint is of an external thread threaded pipe structure, the lower end of the connecting circular pipe is of an internal thread threaded pipe structure, and the upper joint is screwed into the lower port of the connecting circular pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses possess two kinds of sitting and seal the structure, for only sitting the packer that seals up through a kind, have the lower advantage of leakage probability, be difficult for causing sealed not tight problem to take place.
2. The steel wire rope is a plastic-coated steel wire rope and comprises a steel wire rope core and a plastic outer sheath, the steel wire rope core is made of stainless steel, and the plastic outer sheath has the advantage of acid and alkali corrosion resistance, so that the steel wire rope is more durable.
3. Be provided with the screw hole on the outer wall of connection pipe, and install stop screw on this screw hole, stop screw is located tapered sleeve's top, and when tapered sleeve's upper end and stop screw contact, the lower extreme of tapered sleeve's toper cylindric portion is located the rubber barrel casing, makes the lower extreme of tapered sleeve's toper cylindric portion be located the rubber barrel casing all the time under the effect of stop screw quota, can not take place the problem that can not wedge the tapered sleeve in the rubber barrel casing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1;
fig. 3 is a schematic structural diagram of a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a third embodiment of the present invention;
fig. 5 is a top view of the tapered bushing of the present invention.
In the figure: 1. an upper joint; 2. an upper rubber cylinder seat; 3. a rubber cylinder; 4. a lower rubber cylinder seat; 5. a lower joint; 6. a connecting circular pipe; 7. a catch tray; 8. a rubber sleeve; 9. a tapered sleeve; 901. a groove; 10. a pull ring; 11. a steel cord; 12. a limit screw; 13. a flange plate.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1, in the present embodiment, a combined packer used under a high-temperature and high-pressure working condition includes a lower packer, where the lower packer includes an upper joint 1, an upper cylinder base 2, a rubber cylinder 3, a lower cylinder base 4, a lower joint 5 and a central tube, the upper joint 1 and the lower joint 5 are respectively disposed at the upper end and the lower end of the central tube, the upper cylinder base 2, the rubber cylinder 3 and the lower cylinder base 4 are all cylindrical structures, and are all sleeved outside the central tube and sequentially disposed from top to bottom, and the upper end and the lower end of the rubber cylinder 3 are respectively fixed on the outer wall of the central tube by the upper cylinder base 2 and the lower cylinder base 4 through a vulcanization core, which is a common expandable packer structure.
The packer also comprises an upper packer, the upper packer comprises a connecting circular pipe 6, flange plates 13 are arranged at the upper end of the upper joint 1 and the lower end of the connecting circular pipe 6, the upper joint 1 and the connecting circular pipe 6 are connected through the flange plates 13 and bolts and nuts, a baffle disc 7 is sleeved on the outer wall of the connecting circular pipe 6, the baffle disc 7 is fixedly connected with the connecting circular pipe 6, the two are arranged along the central axis, a rubber cylinder sleeve 8 and a conical sleeve 9 are further sleeved on the outer wall of the connecting circular pipe 6, the rubber cylinder sleeve 8 is positioned on the lower side of the conical sleeve 9, the rubber cylinder sleeve 8 is in a circular pipe shape, and the inner diameter of the rubber cylinder sleeve 8 is larger than the outer diameter of the connecting circular; the tapered sleeve 9 includes a tapered cylindrical portion and a cylindrical portion, the tapered cylindrical portion and the cylindrical portion are of an integrally formed structure, the tapered cylindrical portion is located on the lower side of the cylindrical portion, inner diameters of the tapered cylindrical portion and the cylindrical portion are the same as an outer diameter of the connecting circular pipe 6, an outer diameter of a lower end of the tapered cylindrical portion is smaller than an inner diameter of the rubber sleeve 8, and an outer diameter of an upper end of the tapered cylindrical portion is larger than an inner diameter of the rubber sleeve 8, referring to fig. 2 and 5, at least three grooves 901 are formed in an upper end face of the cylindrical portion, the grooves 901 are uniformly arranged along a circumferential direction of the cylindrical.
The utility model discloses a theory of operation: the lower packer of the utility model is an expansion packer structure, and the rubber cylinder 3 expands to realize sealing by acting liquid with certain pressure on the inner side of the rubber cylinder 3; go up the packer for wedging formula sealer structure, wedge taper sleeve 9 in rubber barrel casing 8 for 8 bloateings of rubber barrel casing realize sealed. During the deblocking, pull out taper sleeve 9 in by rubber barrel casing 8 through each steel wire rope 11, can realize going up the deblocking of packer, can realize the deblocking of packer down through carrying out the pressure release to the pressure liquid in the packing element 3. Therefore, the utility model discloses possess two kinds of sitting and seal the structure, for only sitting the packer that seals up through a kind, have the lower advantage of leakage probability, be difficult for causing sealed not tight problem to take place.
In this embodiment, the steel cord 11 is a plastic-coated steel cord and is composed of a steel cord core and a plastic outer sheath, the steel cord core is made of stainless steel, and the plastic outer sheath has the advantage of acid and alkali corrosion resistance, so that the steel cord 11 is more durable.
Example two:
referring to fig. 3, in the present embodiment, a combined packer used under a high-temperature and high-pressure working condition includes a lower packer, where the lower packer includes an upper joint 1, an upper cylinder base 2, a rubber cylinder 3, a lower cylinder base 4, a lower joint 5 and a central tube, the upper joint 1 and the lower joint 5 are respectively disposed at the upper end and the lower end of the central tube, the upper cylinder base 2, the rubber cylinder 3 and the lower cylinder base 4 are all cylindrical structures, and are all sleeved outside the central tube and sequentially disposed from top to bottom, and the upper end and the lower end of the rubber cylinder 3 are respectively fixed on the outer wall of the central tube by the upper cylinder base 2 and the lower cylinder base 4 through a vulcanization core, which is a common expandable packer structure.
Still include the packer, go up the packer including connecting pipe 6, top connection 1 is internal thread screwed pipe structure, and the lower extreme of connecting pipe 6 is external thread screwed pipe structure, connects in the lower extreme twist top connection 1 of pipe 6. The outer wall of the connecting circular pipe 6 is sleeved with a baffle disc 7, the baffle disc 7 is fixedly connected with the connecting circular pipe 6 and is arranged with the same central axis, the outer wall of the connecting circular pipe 6 is further sleeved with a rubber cylinder sleeve 8 and a conical sleeve 9, the rubber cylinder sleeve 8 is positioned on the lower side of the conical sleeve 9, the rubber cylinder sleeve 8 is in a circular pipe shape, and the inner diameter of the rubber cylinder sleeve 8 is larger than the outer diameter of the connecting circular pipe 6 and smaller than the outer diameter of the baffle disc 7; the conical sleeve 9 comprises a conical cylindrical part and a cylindrical part, the conical cylindrical part and the cylindrical part are of an integrated structure, the conical cylindrical part is located on the lower side of the cylindrical part, the inner diameters of the conical cylindrical part and the cylindrical part are the same as the outer diameter of the connecting circular pipe 6, the outer diameter of the lower end of the conical cylindrical part is smaller than the inner diameter of the rubber sleeve 8, the outer diameter of the upper end of the conical cylindrical part is larger than the inner diameter of the rubber sleeve 8, at least three grooves 901 are formed in the upper end face of the cylindrical part, the grooves 901 are uniformly arranged along the circumferential direction of the cylindrical part, pull rings 10.
Example three:
referring to fig. 4, in the present embodiment, a combined packer used under a high-temperature and high-pressure working condition includes a lower packer, where the lower packer includes an upper joint 1, an upper cylinder base 2, a rubber cylinder 3, a lower cylinder base 4, a lower joint 5 and a central tube, the upper joint 1 and the lower joint 5 are respectively disposed at the upper end and the lower end of the central tube, the upper cylinder base 2, the rubber cylinder 3 and the lower cylinder base 4 are all cylindrical structures, and are all sleeved outside the central tube and sequentially disposed from top to bottom, and the upper end and the lower end of the rubber cylinder 3 are respectively fixed on the outer wall of the central tube by the upper cylinder base 2 and the lower cylinder base 4 through a vulcanization core, which is a common expandable packer structure.
Still include the packer, go up the packer including connecting pipe 6, top connection 1 is outer silk screwed pipe structure, and the lower extreme of connecting pipe 6 is interior silk screwed pipe structure, and top connection 1 twists in the lower port of connecting pipe 6. The outer wall of the connecting circular pipe 6 is sleeved with a baffle disc 7, the baffle disc 7 is fixedly connected with the connecting circular pipe 6 and is arranged with the same central axis, the outer wall of the connecting circular pipe 6 is further sleeved with a rubber cylinder sleeve 8 and a conical sleeve 9, the rubber cylinder sleeve 8 is positioned on the lower side of the conical sleeve 9, the rubber cylinder sleeve 8 is in a circular pipe shape, and the inner diameter of the rubber cylinder sleeve 8 is larger than the outer diameter of the connecting circular pipe 6 and smaller than the outer diameter of the baffle disc 7; the conical sleeve 9 comprises a conical cylindrical part and a cylindrical part, the conical cylindrical part and the cylindrical part are of an integrated structure, the conical cylindrical part is located on the lower side of the cylindrical part, the inner diameters of the conical cylindrical part and the cylindrical part are the same as the outer diameter of the connecting circular pipe 6, the outer diameter of the lower end of the conical cylindrical part is smaller than the inner diameter of the rubber sleeve 8, the outer diameter of the upper end of the conical cylindrical part is larger than the inner diameter of the rubber sleeve 8, at least three grooves 901 are formed in the upper end face of the cylindrical part, the grooves 901 are uniformly arranged along the circumferential direction of the cylindrical part, pull rings 10.
Be provided with the screw hole on the outer wall of connection pipe 6, and install stop screw 12 on this screw hole, stop screw 12 is located tapered sleeve 9's top, and when tapered sleeve 9's upper end and stop screw 12 contact, the lower extreme of the toper cylindric portion of tapered sleeve 9 is located rubber barrel casing 8, makes the lower extreme of the toper cylindric portion of tapered sleeve 9 be located rubber barrel casing 8 all the time under the effect of stop screw 12 amount, can not take place the problem that can not wedge tapered sleeve 9 in rubber barrel casing 8.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A combined packer used under a high-temperature and high-pressure working condition comprises a lower packer, wherein the lower packer comprises an upper joint (1), an upper rubber sleeve seat (2), a rubber sleeve (3), a lower rubber sleeve seat (4), a lower joint (5) and a central tube, and is characterized by further comprising an upper packer, the upper packer comprises a connecting circular tube (6), the lower end of the connecting circular tube (6) is detachably connected with the upper joint (1), a baffle disc (7) is sleeved on the outer wall of the connecting circular tube (6), the baffle disc (7) is fixedly connected with the connecting circular tube (6), the two are arranged along the central axis, a rubber sleeve (8) and a conical sleeve (9) are further sleeved on the outer wall of the connecting circular tube (6), the rubber sleeve (8) is positioned at the lower side of the conical sleeve (9), the rubber sleeve (8) is in a circular tube shape, the inner diameter of the rubber sleeve (8) is larger than the outer diameter of the connecting circular tube (6), is smaller than the outer diameter of the baffle disc (7); the tapered sleeve (9) comprises a tapered cylindrical part and a cylindrical part, the tapered cylindrical part and the cylindrical part are of an integrally formed structure, the tapered cylindrical part is located on the lower side of the cylindrical part, the inner diameters of the tapered cylindrical part and the cylindrical part are the same as the outer diameter of the connecting circular pipe (6), the outer diameter of the lower end of the tapered cylindrical part is smaller than the inner diameter of the rubber cylinder sleeve (8), the outer diameter of the upper end of the tapered cylindrical part is larger than the inner diameter of the rubber cylinder sleeve (8), at least three grooves (901) are formed in the upper end face of the cylindrical part, the grooves (901) are uniformly arranged along the circumferential direction of the cylindrical part, pull rings (10) are arranged in the grooves (901), and steel wire soft.
2. The combined packer used under the high-temperature and high-pressure working condition as claimed in claim 1, wherein the steel wire rope (11) is a plastic coated steel wire rope and consists of a steel wire rope core and a plastic outer sheath, and the steel wire rope core is made of stainless steel.
3. The combined packer used under the high-temperature and high-pressure working condition as claimed in claim 1, wherein the outer wall of the connecting circular tube (6) is provided with a threaded hole, a limit screw (12) is installed on the threaded hole, the limit screw (12) is positioned above the conical sleeve (9), and when the upper end of the conical sleeve (9) is contacted with the limit screw (12), the lower end of the conical cylindrical part of the conical sleeve (9) is positioned in the rubber cylindrical sleeve (8).
4. The combined packer used under the working condition of high temperature and high pressure as claimed in any one of claims 1 to 3, wherein the upper end of the upper joint (1) and the lower end of the connecting circular tube (6) are both provided with flanges (13), and the upper joint (1) and the connecting circular tube (6) are connected with bolts and nuts through the flanges (13).
5. A combined packer for high-temperature and high-pressure working conditions, as claimed in any one of claims 1 to 3, characterised in that the upper joint (1) is of an internal thread threaded pipe structure, the lower end of the connecting circular pipe (6) is of an external thread threaded pipe structure, and the lower end of the connecting circular pipe (6) is screwed into the upper joint (1).
6. A combined packer used under high-temperature and high-pressure working conditions, as claimed in any one of claims 1-3, characterized in that the upper joint (1) is of an external thread threaded pipe structure, the lower end of the connecting circular pipe (6) is of an internal thread threaded pipe structure, and the upper joint (1) is screwed into the lower port of the connecting circular pipe (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022004151.8U CN213297905U (en) | 2020-09-14 | 2020-09-14 | Combined packer used under high-temperature and high-pressure working condition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022004151.8U CN213297905U (en) | 2020-09-14 | 2020-09-14 | Combined packer used under high-temperature and high-pressure working condition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213297905U true CN213297905U (en) | 2021-05-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022004151.8U Active CN213297905U (en) | 2020-09-14 | 2020-09-14 | Combined packer used under high-temperature and high-pressure working condition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213297905U (en) |
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- 2020-09-14 CN CN202022004151.8U patent/CN213297905U/en active Active
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